It was an issue on our end, and should be cleared up now. Thanks for all your reports!

If anyone is still seeing DNS-related errors in their Webmaster Tools account, check the "last found" date. If it's dated before today, wait for us to recrawl the URL and the error should go away; otherwise, feel free to post the details here and we can look into it further.

So it should all be cleared up now, shouldn't it?

Some users are still reporting issues, are they related to this DNS caching issue or is it something else?